Valve-gear for pneumatic cotton-feeders.



G. W. WILLIAMS.

VALVE GEAR FOR PNEUMATIC COTTON FEE DEBS.

Patented Mar. 27, I900.

(Application filed Dec. 11, 1899.)

(No Model.)

A TTOHNEYS WITNESSES THE nouns PETERS ca, wom umou WASHINGTON, o. c.

UNITED STATES P TENT 'Orrion.

GEORGE NV. WVILLIA'MS, OF WVAGO, TEXAS, ASSIGNOR TO THE KELLETT- OHATHAMMACHINERY COMPANY, OF SAME PLACE.

VALVE-GEAR FOR PNEUMATIC COTTON-FEEDERS.

SPECIFICATION forming part of Letters Patent No. 646,248, dated March27, 190( Application filed December 11, 1899. Serial No. 739,929; (Nomodel.)

to the cotton-elevator disclosed in my application filed March 20, 1890,Serial No. 709,779, which has issued as Patent No. 641,176, datedJanuary 9, 1900.

The special object of this invention is to provide means for operatingthe air-blast, by which means the valve may be held in one positionlonger than in the other, thus adapting it to a battery of elevatorsformed in divisions operating alternately, in which divisions there areunequal numbers of elevatorsections and which therefore requires that inone division the air-blast be applied longer than in the other, all ofwhich will be understood in connection with the copending applicationreferred to.

This specification is the disclosure of one form of my invention, whilethe claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a side elevation of the gear. Fig. 2 is a front elevation,with parts in section, on the line 2 2 of Fig. 1. Fig. 3 is a plan view,and Fig. 4 is a section of the valve horizontally on the line 4 4 ofFig. 1.

The valve-casing 5 and the valve 6 may be of any desired form, exceptthat the casing has two inlets 7 communicating, respectively, with thedivisions of the battery of elevators referred to hereinbefore and thatthe valve is mounted to oscillate alternately to uncover the saidinlet-openings 7.

On the casing 5 is mounted a frame or column 8, in which the upper endof the stem or shaft 9 of the valve is mounted to rock. This stem isalso mounted in a bearing at the, base of the frame 8 and is attached tothe valve, as shown. Fixed to the stem 9, directly above the base of theframe 8, is an arm 10,

adj ustably held on the stem by a set-screw, as

shown. The upper end of the stem projects above the frame 8, and asecond arm 11 is fastened to the stem 9 above the frame by means of aset-screw similarly to the arm 10. These arms 10 and 11 are set at anacute angle to each other. (See Fig.

Mounted on the top of the casing 5 is a horizontally disposedcontinuously revoluble worm-shaft 12, which meshes with a wormwheel 14,mounted to turn on a pedestal 15, standing on the casing 5. Thisworm-wheel 14 has a portion 14 of its rim or periphery widened, asshown, and formed with a number of orifices 14 set at difierentpositions radially thereon and all disposed in the same circumferentialline. The wheel 14 is provided at approximately the middle of thewidened part 14? with a rigid pin 15", projecting forward from thewheel, so that its path of movement will coincide with the arm 11 of thestem 9, thus throwing the arm and turning the stem as the pin 15 engageswith the arm. The pin 15 is disposed outward from the line in which theorifices 14 are disposed. A second pin 16 is provided and is capable ofbeing removably yet rigidly fitted in any one of the openings 14 As hereshown, the pin 16 has its path of movement in line with the arm 10, sothat as the wheel 14 turns the pin 16 will strike the arm and rock thestem 9; but it will be seen that this rocking movement of the stem willbe opposed to that oocasioned by the engagement of the pin 15 with thearm 11.

According to the arrangement illustrated the six openings 14 aredisposed three on each side of the stationary pin 15,'and in practicethese openings 14 on each side of the pin will be designated by suchnumbers as those sh0wnnamely, 3, 5, 7-- produced on the widened portion14 of the wheel 14. These numbers refer to the number ofelevator-sections in the battery with which the valve mechanism is used,and the openings 15 are formed on each side of the pin 15 to facilitateplacing the smaller number of sections in the right-hand division andhand division, or vice versa, the smaller number of sections in theleft-hand division and the greater number' of sections in the righthanddivision. Now when the valve-gear is used in connection with a batteryof elevatorsections of unequal number-for example, three sectionstheparts are adjusted, as shown in the drawings-that is, the arm 11 isplaced in the path of the pin 15" and the pin 16 is placed in one of theopenings 14*, which opening is adapted to the battery of threeelevator-sections, as mentioned above. The arm 10 is then placed in thepath of'the pin 16. .As the wheel 14 turns, therefore, in the directionof the arrow in Fig. 2 the pin 15 in moving past the arm 11 will engagethe arm and throw the valve to the position shown in Fig. 2. Then as therevolution of the wheel continues the pin 16 will move below the arm 11without actuating the same; but when it approaches the arm 10it willcontact therewith and throw the valve 6 to the position opposed to thatshown in Fig. 2.

he next movement of the valve is brought about by the return of the pin15 to the upper end of the stem 9, where it engages the arm 11 andthrows it back to the position shown in Fig. 2. It will thus be seenthat the valve is kept in one position longer than in another, and it isin this manner that the object of my invention is attained. Should thevalve-gear be used in connection with a battery of elevator-sections ofan even number, both of the arms 10 and 11 should be set in the path ofthe pin 15. It will thus be seen that the valve will be operated atequal intervals. 7

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- 1. The combination of a rocking .valve stem or shaft,two arms attached thereto, a wheel mounted to turn continuously inproximity to the shaft, a pin fastened permanently to the wheel andadapted to engage one of the arms on the stem, and a second pinadjustably mounted on the wheel and adapted to engage the other arm onthe stem.

2. The combination of a rocking or oscillating valve, a wheel mounted toturn adjacent thereto, a pin mounted permanently on the wheel andadapted to actuate the valve in one direction, and a pin mounted adjustably on the wheel and adapted to actuate the valve in the otherdirection.

8. The combination of a rocking valve, a wheel having a number ofopenings formed therein, a pin permanently attached to the wheel, and asecond pin capable of being adjustably secured in any one of theopenings of the wheel, the said pins serving to drive the valve in themanner specified.

4. The combination of a rocking valve having two projecting parts, and acontinuously revolving member, the axis of which is situatedintermediate the said projecting parts of the valve, the revolvingmember having means thereon arranged alternately to actuate the saidprojecting parts of the valve to rock the valve.

5. The combination of a rocking valve hav= ing two parts projectingtherefrom, a wheel mounted adjacent to the valve with its axisintermediate the said projecting parts, and two pins attached to thewheel at different points thereon, the pins being adapted respectivelyto strike the said projecting parts of the valve, to operate the same.

In testimony whereof I have signed my name to. this specification in thepresence o'l' two subscribing witnesses.

GEORGE W. VILLIAMS.

Witnesses:

A. L. ELLIOTT, J. M. MAYER.

